For this particular ceramic decoration, visit a ceramic supplier and be sure to choose a glaze that is compatible with others; your ceramic dealer will be able to advise you and arrange the firing process.
It is suggested that you purchase a piece which is already bisque ware ( when the green ware has been fired,) this gives you a piece which is less fragile to work on. Be sure to select glazes which are used on bisque.
Make sure your work area is clean and free from dust.
Now your ceramic sculpture is ready to be fired in a kiln. If you need to transport it to a ceramic dealer for firing, pack it carefully and include the firing temperatures which were on your glazes.